cn.hutool.cache.file

Class LRUFileCache

java.lang.Object

cn.hutool.cache.file.AbstractFileCache

cn.hutool.cache.file.LRUFileCache

All Implemented Interfaces:

Serializable

public class LRUFileCache
extends AbstractFileCache

使用LRU缓存文件，以解决频繁读取文件引起的性能问题

Author:

Looly

See Also:

Serialized Form

Field Summary

Fields inherited from class cn.hutool.cache.file.AbstractFileCache

cache, capacity, maxFileSize, timeout, usedSize

Constructor Summary

Constructors

Constructor and Description
LRUFileCache(int capacity) 构造 最大文件大小为缓存容量的一半 默认无超时
LRUFileCache(int capacity, int maxFileSize) 构造 默认无超时
LRUFileCache(int capacity, int maxFileSize, long timeout) 构造

Method Summary

Modifier and Type	Method and Description
protected Cache<File,byte[]>	initCache() 初始化实现文件缓存的缓存对象

Methods inherited from class cn.hutool.cache.file.AbstractFileCache

capacity, clear, getCachedFilesCount, getFileBytes, getFileBytes, getUsedSize, maxFileSize, timeout

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LRUFileCache

public LRUFileCache(int capacity)

构造
最大文件大小为缓存容量的一半
默认无超时

Parameters:

capacity - 缓存容量

LRUFileCache

public LRUFileCache(int capacity,
                    int maxFileSize)

构造
默认无超时

Parameters:

capacity - 缓存容量

maxFileSize - 最大文件大小

LRUFileCache

public LRUFileCache(int capacity,
                    int maxFileSize,
                    long timeout)

构造

Parameters:

capacity - 缓存容量

maxFileSize - 文件最大大小

timeout - 默认超时时间，0表示无默认超时

Method Detail

initCache

protected Cache<File,byte[]> initCache()

Description copied from class: AbstractFileCache

初始化实现文件缓存的缓存对象

Specified by:

initCache in class AbstractFileCache

Returns:

Cache